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require_relative "spec_helper"
require 'yaml'
describe "serialization_modification_detection plugin" do
before do
@c = Class.new(Sequel::Model(:items))
@c.class_eval do
columns :id, :h
plugin :serialization, :yaml, :h
plugin :serialization_modification_detection
end
@o1 = @c.new(:h=>{})
@o2 = @c.load(:id=>1, :h=>"--- {}\n\n")
@o3 = @c.new
@o4 = @c.load(:id=>1, :h=>nil)
DB.reset
end
it "should not detect columns that haven't been changed" do
@o1.changed_columns.must_equal []
@o1.h.must_equal({})
@o1.h[1] = 2
@o1.h.clear
@o1.changed_columns.must_equal []
@o2.changed_columns.must_equal []
@o2.h.must_equal({})
@o2.h[1] = 2
@o2.h.clear
@o2.changed_columns.must_equal []
end
it "should detect columns that have been changed" do
@o1.changed_columns.must_equal []
@o1.h.must_equal({})
@o1.h[1] = 2
@o1.changed_columns.must_equal [:h]
@o2.changed_columns.must_equal []
@o2.h.must_equal({})
@o2.h[1] = 2
@o2.changed_columns.must_equal [:h]
@o3.changed_columns.must_equal []
@o3.h.must_be_nil
@o3.h = {}
@o3.changed_columns.must_equal [:h]
@o4.changed_columns.must_equal []
@o4.h.must_be_nil
@o4.h = {}
@o4.changed_columns.must_equal [:h]
end
it "should report correct changed_columns after saving" do
@o1.h[1] = 2
@o1.save
@o1.changed_columns.must_equal []
@o2.h[1] = 2
@o2.save_changes
@o2.changed_columns.must_equal []
@o3.h = {1=>2}
@o3.save
@o3.changed_columns.must_equal []
@o4.h = {1=>2}
@o4.save
@o4.changed_columns.must_equal []
end
it "should work with frozen objects" do
@o1.changed_columns.must_equal []
@o1.h.must_equal({})
@o1.freeze.must_be_same_as @o1
@o1.h[1] = 2
@o1.changed_columns.must_equal [:h]
end
it "should work with frozen objects when checking changed_colums during validation" do
@c.send(:define_method, :validate){changed_columns}
@o1.h[1] = 2
@o1.freeze
@o1.changed_columns.must_equal [:h]
end
it "should work with duplicating objects" do
@o2.changed_columns.must_equal []
o = @o2.dup
@o2.h.must_equal({})
@o2.h[1] = 2
@o2.changed_columns.must_equal [:h]
o.changed_columns.must_equal []
end
it "should work with duplicating objects after modifying them" do
@o2.changed_columns.must_equal []
@o2.h.must_equal({})
@o2.h[1] = 2
@o2.changed_columns.must_equal [:h]
o = @o2.dup
o.changed_columns.must_equal [:h]
end
end
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